PT. ALCO ART STUDIO HAL. A-20 SMPN 1 SENGATA PENULANGAN PLAT LAJUR Mlx = = 4725.00 kgm tanah keras Penulangan Lajur Data-data fc' (beton) 25 Mpa h 150 fy' (baja) 350 Mpa b 1000 20 mm (dlm ruang) pmin = 1,4 / 350 = 0.0040 pmaks = 0,75 x (0,85 x 25)/350 x 0,85 x [600/(600+350)] = 0.0244 Lapangan x Mu = 4725 *9.8/1000kgm = 44.32 kNm d = 150 - 20 = 130 mm j = 0.8 Rn = (44.32 x 10^6) = 3.2781 Mpa (0,8 x 1000 x 130^2) W = 0,85 { 1 -sqrt[1 - (2,353 x 3.2781)/25]} = 0.1432 p = 0.1432 x 25/350 = 0.0102 > 0.0040 < 0.0244 ppakai = 0.0102 As = 0.0102 x 1000 x 130 = 1329.62 mm2 As' = 0,002 x 1000 x 150 = 300 mm2 Rekapitulasi mm2 mm 1329.62 D13 - 1001,327 mm2 ) Mlx = = 2000.00 kgm tanah keras Penulangan memendek Data-data fc' (beton) 25 Mpa h 150 fy' (baja) 240 Mpa b 1000 20 mm (dlm ruang) pmin = 1,4 / 240 = 0.0058 pmaks = 0,75 x (0,85 x 25)/240 x 0,85 x [600/(600+240)] = 0.0403 Lapangan x Mu = 2000 *9.8/1000kgm = 18.76 kNm 1/8 X 4200 X 3 2 X 1 d' (1) Lapangan X (tul atas) 0.5 X 4000 X 1 2 X 1 d' (1) Proyek : Pembanguan Sekolah Terpadu SMPN 1 SENGATA Pembuat : Teguh Santoso SPd Lokasi : Kutai - Indonesia Tanggal : 19/09/2007
plat lajurPENULANGAN PLAT LAJURMlx=1/8 X 4200 X 32 X
1=4725.00kgmtanah kerasPenulangan LajurData-datafc'
(beton)25Mpah150mmfy' (baja)350Mpab1000mmd' (1)20mm (dlm
ruang)pmin=1,4 / 350=0.0040pmaks=0,75 x (0,85 x 25)/350 x 0,85 x
[600/(600+350)]=0.0244Lapangan xMu=4725 *9.8/1000kgm=44.32kNmd=150
- 20=130mmj=0.8Rn=(44.32 x 10^6)=3.2781Mpa(0,8 x 1000 x
130^2)W=0,85 { 1 -sqrt[1 - (2,353 x 3.2781)/25]}=0.1432p = 0.1432 x
25/350=0.0102>0.00400.0040
